DISPLAY DEVICES, POWER DEVICES, AND PIXELS

Abstract

The invention relates to a power supply device comprising a gate control circuit configured to supply power signals to power lines, a first power supply circuit configured to supply a first initial voltage of a voltage level between the first and second voltage levels to the first initial power lines, this first initial voltage having a voltage level of the first in the first period, a third voltage level between the first and second voltage levels in the second period, and a second voltage level in the third period, and a second power supply circuit configured to supply a control voltage to the power lines controlling the number of power lines, and a display device comprising this power supply device. The display device and the picture are also disclosed.